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April 5, 1932. J. P. SA| M0N ART OF DRIVING PILES Filed oct, 23, 1929jjzvefdvf' James Plmfz/ y l 1 1 Hwmwdl PatentedY Apr. 5, 1932i emrah,STATES JAMES P, sniiivioiv,Y yor iJHILAnELPi-IA, Pi'iivivsYLvfANrA ARTor fnnivifii'e mais Application mea october 23, "ieee, 'serial bgisi.

driven path, and generally to facilitate the` 5 lowering of the pile, bythe introduction of water under pressure.l

A further object is to provide a ypipe of suitable construction, to belowered with the pile as it is driven, whereby water under pres- 1g suremay be carried to and ejected at a given location in relation to thelower end of the pile, so as to assist vin creating a path of lesserresistance to the driven pile.

Astill further object is to provide the end of the pipe with anozzle forthe ejection of water with force, the construction of the nozzle beingsuch as to permit its movemen within a limited spherical path. j

Aurther object is to provide a separate air supply within the waterpressure* pipe to augment the force of the water under pressure.

For the purpose of illustrating my invention I have shown in theaccompanying drawl ings one form thereof which is at present preferredbyme, since the same has been found in practice to give satisfactory andreliable results, although it is to be understood that the variousinstrumentalities ofv which my 3o invention consists can be variouslyarranged and organized and that my inventio-n is not limited to theprecise arrangement and organization of the instrumentalities as hereinshown and described.

In the accompanying drawings, wherein like reference numerals refer tolike parts,

Figure 1 represents an elevation of a pile being driven, and my improveddevice iny its associatedl working position thereto, and

Figure 2 represents a vertical section through the center of my-improveddevice. f

Incarrying out my invention I provide a suitable pipe 3 for conveyingthe water to within proximity of' the lower end of the 45 pile 5. Thepipe 3 has mounted on its lower end a nozzle 8, the upper end 9 of whichis spherical in shape and adapted toride within a fastening nut 10threaded on the lower end of the pipe 7. A nozzle socket 11 is in- ,50terposed between the lower end of the pipe center yof the main pifp'efSland the upper splfreial lace 9 of the noz; z le 8. 'y 1 i in are termof mylnventif 'shown' the' drawings, 'an lair pipe is, d in the n Jprop-er relation by series spiders is. l

In operaticnthe pile-"5 rs ldriven in 'the j usual manner, and the pipe3 'is lowered 'there'-y witjh, suitable parallel spaced relationthereto; the nozzles beingkefpt 'in eleggere-j l-at'i'on to thelowe'f'leiid 'of fthe pile'. under pressure s-intifo'dced into the pipe.3 through any suitable Vconnectionk atrits tep (not 'Stews inaltera-Wingene ejecne with Y suljcient force to wash away tneeatligihitspath and also partly inthe vpafth of theV pile 5, thereby lessening theresistance jn the path: oi' the 'driven pile.` l l j v The force ofthewater ejected frein the j pipe 3 can be controlled from any'vsuitable70 scarce-,f increased when the nature elite Seil presents' greaterresistance to tliepilean'd decreased when lesse-'r resistance ispresent, or in some instances in the case of very light sandy soils,shut olf entirely. In other cases it is possible that rocks or otherdbris may be encountered, and when this condition is met with,y the piledriver is stopped and the f water given full force.

The spherical portion 9 oftheA nozzle is fill" i normally held looselywithin the nut l0 and 4 socket 41l', and the stream of water ejectedfrom the nozzle coming into yclose contact with hardmatter asillustrated at 6 Figure 1willl cause the `nozzle to assume a dierent 5angle or to swivel around in a circular path and thereby create a cavitysuch as shown at A. Vhen sufficient space. hasthus been formed about thevicinity of the obstruction, Y

the pile is again driven downward, and the. dbris 6 will easily move outof its path and into the cavity formed at A, allowing a further freepassage of the pile through the earth.

The length of time for the application of 95 water pressure alone, andtheforce of the water pressure from the nozzle are determined by thenature of the soil and itsresistance to the driven pile.

I have shown an air pipe 12, introduced tra eld iiits through the centerof the water pipe 3 for the purpose of augmenting the water pressurewhen that is found insufficient for the purpose, The structure of thepipe 3 remains 5 the same Whether it carries the auxiliary air line ornot, the sole difference being the introduction of the air pipe and thespiders to hold it in its proper place. The agitation of g the jet ofwater by this auxiliary air supply,

l introduced right into the nozzle, augments the action of the water.

I am aware that the invention may be embodied in other specific formsWithout departin(lr from the spirit 01 essential attributes l thereo andI therefore desire the present embodiment to be considered in allrespects as illustrative and not restrictive, reference bering had tothe appended claims rather than to the foregoing description to indicatethe scope of the invention.

Having thus described my invention, what I claim as new and desire tosecure by Letters Patent, is

1. The combination with a pile, of a jetting device consisting of awater supply pipe adapted to be lowered alongside a pile, and aswivelled nozzle at the lower end of said pipe.

2. A jetting nozzle consisting of two pipes,

one within the other, one for conveying water and the other forconveying air under pressure and a swivelled nozzle at the lower end ofthe outer pipe for receiving the supply of water and air and ejectingthe same in a Jet.

In testimony whereof, I have hereunto set my hand this 16th day ofAugust, 1929.

JAMES P. SALMON.

